Open MPI di CentOS

[root@master ~]# uname -a
Linux master 2.6.32-358.el6.x86_64 #1 SMP Fri Feb 22 00:31:26 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
[root@master ~]# yum install openmpi
Loaded plugins: fastestmirror, security
Determining fastest mirrors
 * base: mirror.unej.ac.id
 * extras: ossm.utm.my
 * updates: mirror.nus.edu.sg
base                                                     | 3.7 kB     00:00
extras                                                   | 3.4 kB     00:00
updates                                                  | 3.4 kB     00:00
updates/primary_db                                       | 1.4 MB     00:05
Setting up Install Process
Package openmpi-1.5.4-2.el6.x86_64 already installed and latest version
Nothing to do
[root@master ~]# module load openmpi-x86_64
[root@master ~]# module list
Currently Loaded Modulefiles:
  1) openmpi-x86_64